Name one disadvantage of using water energy.
habitat destruction, loss of biodiversity
What is a disadvantage of using solar energy?
They are only practical in sunny climates
Name one advantage and one disadvantage of using wind energy.
It is a clean and renewable energy, but it can damage habitats and bird populations.
Name three major sources of renewable energy.
sunlight, wind, and water
What is a disadvantage of burning coal?
It creates air pollution.
______________ energy sources are unlimited.
Renewable
Name three types of fossil fuels.
coal, crude oil, and natural gas
This is a _____________.
wind turbine
Name 3 problems that come from using nonrenewable energy sources.
pollution, global warming, habitat destruction, and loss of biodiversity
What do we do with biomass to generate energy?
We burn it! (to boil water)
Why are radioactive waste products dangerous?
They can cause cancer.
True or false: we don't have very much uranium left on the Earth.
False! We have enough for many centuries (hundreds and hundreds of years)
This is a ___________.
dam
True or false: Natural gas burns more cleanly than other energy sources, but it contributes to global warming.
True!
Nuclear power stations use a radioactive material, called ______________, to generate electricity.
uranium
It is almost impossible to replace ________________ energy sources.
nonrenewable
Name two natural things that are created by geothermal energy.
Volcanoes and hot springs
What is a disadvantage of using geothermal energy?
We can only use it in areas with volcanic activity
_____________ is organic material, such as wood and food waste.
biomass
Name one advantage and one disadvantage of using crude oil.
It is easy to transport by boat, but oil spills damage the environment and sea animals.